CN207442871U - A kind of communication reliability test system of metering automation terminal - Google Patents

Abstract

The utility model provides a kind of communication reliability test system of metering automation terminal, including end-frame, power supply, test main frame, host computer, data server and several detected metering automation terminals.It is detected metering automation terminal to be connected on the connectivity port of end-frame one by one, and is connected with described power supply.The test main frame is communicatively coupled respectively with detected metering automation terminal and host computer, and data server is connected by SATA or scsi interface with the host computer.The system is had the advantages of simple in structure, easy to operation, can be tested with rapid configuration completion input, can detect the communication quality in actual moving process efficiently, in bulk in use, only needing to connect each structure, realization communication.

Description

A Communication Reliability Test System for Metering Automation Terminal

technical field

The utility model relates to the field of electric power system and communication technology, in particular to a communication reliability testing system for metering automation terminals.

Background technique

As one of the important indicators to evaluate the communication performance of measurement automation terminals, communication reliability is the key to ensure the reliable operation of measurement automation terminal performance in actual use. Analytics provide valid data.

Domestic metering automation terminal inspection has long relied on manual inspection, the inspection business is complex, and the technical level of personnel is required to be high. With the large-scale use of metering automation terminals in China, the amount of detection has doubled. In this case, the reliability testing of metering automation terminals is facing a series of typical production capacity problems such as shortage of personnel, low detection efficiency, and high false detection rate. question.

Therefore, a set of measurement automation terminal reliability testing scheme is needed, which can not only ensure the high efficiency of detection, but also meet the needs of batch testing of measurement automation terminals.

Utility model content

The purpose of the utility model is to provide a communication reliability test system for metering automation terminals to efficiently and batch-test the communication quality in the actual operation process.

A communication reliability test system for metering automation terminals, including a terminal frame, a power supply, a test host, a host computer, a data server, and a number of detected metering automation terminals; the detected metering automation terminals are connected to the terminal frame one by one, and connected to The power supply is connected; the test host is respectively connected to the detected measurement automation terminal and the host computer; the data server is connected to the host computer through a SATA or SCSI interface.

Preferably, in the communication reliability test system of the above-mentioned metering automation terminal, the test host includes a data communication unit, a PT/CT sensor, an AD digital-to-analog converter and a programmable memory connected in sequence, and the programmable memory is connected to the host computer ; The data communication unit is communicatively connected with the detected metering automation terminal.

Preferably, in the communication reliability test system of the metering automation terminal, the data communication unit includes a wired communication subunit and a wireless communication subunit, the wired communication subunit includes an RS-485 interface and an RS-232 interface, and the wireless communication module Including GPRS communication interface, WIFI communication interface and Bluetooth communication interface.

Preferably, in the communication reliability test system of the above-mentioned metering automation terminal, the connection port of each terminal frame includes two RS485 connection ports, a Bluetooth interface, a GPRS transceiver and a WIFI transceiver;

The two RS485 connection ports are respectively connected to the RS-485 interface in the detected measurement automation terminal and the wired communication subunit, so that the detection measurement automation terminal is connected to the test host;

The Bluetooth interface, a GPRS transceiver and a WIFI transceiver are respectively connected to the Bluetooth communication interface, the GPRS communication interface and the WIFI communication interface in the wireless communication module, so that the detection and measurement automation terminal is connected to the test host.

Preferably, in the communication reliability testing system of the metering automation terminal, the upper computer communicates with the programmable memory through the RS232 interface in the data communication unit.

Preferably, in the above-mentioned communication reliability test system for metering automation terminals, the test host includes a USB interface, and the host computer communicates with the programmable memory through the USB interface.

Preferably, in the communication reliability testing system of the metering automation terminal described above, 20 connection ports of the metering automation terminal to be tested are set on the terminal frame.

Preferably, in the above-mentioned communication reliability testing system for automated metering terminals, the tested automated metering terminals include meter terminals for collecting electrical information.

The utility model provides a test system, which sends the test data of the upper computer to each terminal through the test host, and the test data forms feedback data through the response of each terminal, and then transmits the feedback data to the upper computer through the test host, The upper computer compares the feedback data and the detection data through an algorithm, and draws a test conclusion about the reliability of a certain terminal. The testing process of the system can simulate the actual communication process of the terminal. In order to meet the batch detection requirements for terminals, multiple communication terminals can be connected simultaneously through the terminal rack for testing. The system has the advantages of simple structure, low requirements on the site, easy operation, quick configuration to complete the test, and can efficiently and batch test the communication quality in the actual operation process.

Description of drawings

Fig. 1 is a schematic structural diagram of a communication reliability testing system for a metering automation terminal provided by the present invention.

Detailed ways

Please refer to Fig. 1, which shows the structure of a communication reliability test system for a metering automation terminal provided by the present invention, including a terminal frame, a power supply, a test host, an upper computer, a data server and several detected metering automation terminals, The measured automation terminals are connected to the terminal frame one by one, and connected to the power supply. The power supply supplies power to the terminal. The test host is respectively connected to the tested metering automation terminal and the host computer; the data server is connected to the host computer through a SATA or SCSI interface. The upper computer tests the communication efficiency under multi-load conditions by sending rapid continuous frames from the test host to the measured automation terminal; sends error frames to test the correctness of the terminal’s analysis of the communication protocol and the ability to shield and process error communication frames; Interference frames are used to test the communication timing of the terminal and the anti-interference ability of the measurement automation terminal communication. The above three data frames simulate the situation encountered by the terminal in actual communication. Combined with the system provided by the utility model, it is possible to quickly and batch test terminal reliability. Combined with the system shown in Figure 1, the test process includes the process of the host computer sending the above three test data, and the process of the terminal responding to the test data. The process of generating feedback data after the response, and the process of communicating between the terminal and the test host to send the feedback data back to the host computer. The upper computer compares the feedback data and the detection data through an algorithm, and draws a test conclusion about the reliability of a certain terminal.

In order to realize the above-mentioned test process, as shown in Figure 1, the test host includes a data communication unit, a PT/CT sensor, an AD digital-to-analog converter and a programmable memory connected in sequence, and the programmable memory is connected with the upper computer; the data communication The unit communicates with the detected metering automation terminal. The AD digital-to-analog converter plays the role of format conversion for test data and feedback data. The upper computer has the function of human-computer interaction, sends out corresponding data frames according to the set detection model, and distributes these data frames to each detected measurement automation terminal. And calculate the returned feedback data to get the reliability test conclusion. In the process of sending data frames from the upper computer to the terminal, the programmable memory executes the command to send data frames from the upper computer, converts the data through the AD analog-to-digital converter, and sends it to the terminal through the data communication unit. In the process of sending the feedback data back to the host computer, the PT/CT sensor collects the feedback data, undergoes AD digital-to-analog conversion again, and sends it to the host computer through the data communication unit. The data server is connected to the upper computer to store the test data and test conclusions. When the system is in use, it only needs to connect various structures to realize communication. It has the advantages of simple structure, easy operation, quick configuration and completion of testing, and can efficiently and batch test the communication quality in the actual operation process.

Considering that the system needs to realize the diversity of detected terminals, it is necessary to realize the communication between the test host and various detected terminals. And because the interfaces of various detected terminals are different. Therefore, the data communication unit may include a wired communication subunit and a wireless communication subunit, the wired communication subunit may include an RS-485 interface and an RS-232 interface, and the wireless communication module may include a GPRS communication interface, a WIFI communication interface and a Bluetooth communication interface. Similarly, in order to make the test system satisfy different types of terminals to be tested, the connection ports of each terminal rack include two RS485 connection ports, a Bluetooth interface, a GPRS transceiver and a WIFI transceiver.

In the actual test, the communication mode between the terminal and the test host can be selected in combination with the current communication situation at the testing site and the type of the terminal. There are mainly two types of communication methods:

In the first kind, the wired communication mode can be selected for both, that is, the two RS485 connection ports on the terminal frame are respectively connected with the RS-485 interface in the detected metering automation terminal and the wired communication subunit, so that the The detection and measurement automation terminal is connected to the test host to receive various test data frames and simulate the actual communication process of the terminal.

In the second type, a bluetooth interface, a GPRS transceiver or a WIFI transceiver of the terminal frame may be connected to the bluetooth communication interface, GPRS communication interface or WIFI communication interface in the wireless communication module respectively, and then the detected terminal passes The RS485 connection port is connected with the terminal frame, so that the automatic terminal for detection and measurement is wirelessly connected with the test host to receive various test data frames and simulate the actual communication process of the terminal. In a word, the communication between the terminal on the terminal rack and the test host can be expressed as realized through bluetooth, wireless or RS485 interface in Fig. 1 .

In actual implementation, the channel types of the wired and wireless communication units can be conveniently switched by using a dial switch. 6 combinations. Through these 6 combinations, the wireless or wired connection between the test host and the terminal is realized.

The communication channel between the test host and the terminal can adjust the impedance of the RS-485AB line to simulate the communication test of the long-distance line in the actual field. The transmission power of Bluetooth and wireless network can be adjusted, which can simulate various situations that the metering automation terminal may encounter in the actual communication site to the greatest extent.

The host computer can communicate with the programmable memory through the RS232 interface in the data communication unit to realize wired communication. The test host includes a USB interface, and the host computer can also communicate with the programmable memory through the USB interface to realize wired communication.

It can be seen that the applicability of the test system provided by the utility model is better, and the transmission and return of test data frames can be realized through various communication methods. It is suitable for long-distance communication detection, can conveniently reorganize the system, has good scalability, and has important practical significance and popularization value.

In order to meet the batch detection requirements for terminals, multiple communication terminals can be connected simultaneously through the terminal rack for testing. In the communication reliability testing system for the measurement automation terminal mentioned above, 20 connection ports of the measurement automation terminal to be tested can be set on the terminal frame. If there is a higher requirement for detection speed, the number of connection ports of the detected automation terminal can be set by itself on the basis of taking into account the timeliness of the detection conclusion obtained through calculation, which is not limited by the present invention. The detected metering automation terminal may include a meter terminal for collecting electrical information, and the system provided by the utility model can be used to test the communication reliability of the meter terminal for collecting electrical information.

The above examples are only for illustrating the utility model, rather than limiting the utility model, and those skilled in the art can also make various transformations and distortions without departing from the spirit and scope of the utility model. Therefore have equivalent technical model, all fall into the protection domain of the present utility model.

Claims (8)

1. the communication reliability test system of a kind of metering automation terminal, which is characterized in that including end-frame, power supply, test Host, host computer, data server and several detected metering automation terminals；Metering automation terminal is detected to connect one by one It is connected on the connectivity port of end-frame, and with described power supply；The test main frame is automatic with the detected metering respectively Change terminal and host computer is communicatively coupled；The data server is connected by SATA or scsi interface with the host computer.

2. the communication reliability test system of metering automation terminal according to claim 1, which is characterized in that the survey Trying host includes sequentially connected data communication units, PT/CT sensors, AD digital analog converters and programmable storage, can compile Journey memory is connected with host computer；Data communication units are communicated to connect with the detected metering automation terminal.

3. the communication reliability test system of metering automation terminal according to claim 2, which is characterized in that the number According to communication unit include wired communicator unit and wireless communication subelement, wire communication subelement include RS-485 interfaces and RS-232 interface, wireless communication module include GPRS communication interfaces, WIFI communication interfaces and bluetooth communication interface.

4. the communication reliability test system of metering automation terminal according to claim 3, which is characterized in that the end Each connectivity port of end-rack is including two RS485 connectors, a blue tooth interface, a GPRS R-T unit and one WIFI R-T units；

Described two RS485 connectors respectively in the detected metering automation terminal and the wire communication subelement RS-485 interfaces connect so that the detection metering automation terminal is connected with test main frame；

One blue tooth interface, a GPRS R-T unit and a WIFI R-T unit respectively with the wireless communication module In bluetooth communication interface, GPRS communication interfaces and WIFI communication interfaces be correspondingly connected with so that the detection metering automation is whole End is connected with test main frame.

5. the communication reliability test system of metering automation terminal according to claim 3, which is characterized in that on described Position machine is communicated to connect by the RS232 interface in the data communication units and the programmable storage.

6. the communication reliability test system of metering automation terminal according to claim 2, which is characterized in that the survey Trying host includes USB interface, and the host computer is communicated to connect by the USB interface and the programmable storage.

7. the communication reliability test system of metering automation terminal according to claim 1, which is characterized in that the end 20 detected metering automation terminal connectivity ports are set in end-rack.

8. the communication reliability test system of metering automation terminal according to claim 1, which is characterized in that the quilt Detecting metering automation terminal includes the meter terminal gathered for power information.